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Feeding a Folded Dipole Antenna
If you play with the numbers, and get the input impedance down to 200ohms, you'll need a 4:1 balun to feed it from 50 ohm coax
post 15 Mar 2024
Antenna Calculator Links →
Loop antenna resonant frequency calculator
The simple calculator below uses the well-known standard formula for determining the total wire length in feet for a single element
Logarithmic Periodic Dipole Antenna Calculator
The javascript starts with the minimum value of = 0.76. If a solution could be found, is increased as long as the length of the boom
Magnetic Loop Antenna Calculator
Magnetic loops or mag loops, can give surprisingly good performance when they are carefully designed and constructed
Parabolic dish calculator
Complete all white boxes and then click the calculate button to obtain results in the green boxes
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The simple calculator below uses the well-known standard formula for determining the total wire length in feet for a single element
The javascript starts with the minimum value of = 0.76. If a solution could be found, is increased as long as the length of the boom
Magnetic loops or mag loops, can give surprisingly good performance when they are carefully designed and constructed
Complete all white boxes and then click the calculate button to obtain results in the green boxes
Take off angle of horizontal antenna For horizontal polarization, the electric field will move sideways on a horizontal plane, while for vertical polarization it will oscillate up and down on a vertical plane
Rx antennas 4Square Rx Vertical Array My frequency design of 1.825 MHz a 90 degrees line would be 33,70 metersinstead of the previously calculated 33,27 m
Atu balanced feeder antenna system An ATU has the advantage of bringing the feeder-antenna system to resonance, act as a band pass filter both on receive and transmit and a low SWR